Hopewell Rocks, New Brunswick

While visiting the Hopewell Rocks in New Brunswick at low tide, we came across some community/spontaneous/environmental art -don't really know what label to put on it, if it needs one.
Each day, after the tide has gone out enough to reveal the beach, the park ranger collects up stones into a form. Throughout the day, visitors to the beach contribute to the installation.

Some like the challenge of balance, building on the Inukshuk idea.

Others add decoration.

Some are challenged to go higher than those before them.
The tide rushed in, levelled it all and made its own arrangement. The park ranger returned in the morning to rearrange the elements again.
It reminded me of the rise and fall of civilisations throughout the history of man.